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I am trying to create my iOS mobile app entirely in code. Doing so causes problems with my custom tab bar controller with a custom tab bar shape.

My custom tab bar shape looks something along the lines of this

AppDelegate.swift:

func application(_ application: UIApplication,
 didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool 

 window = UIWindow()
 window.rootViewController = CustomTabBarController()
 window?.makeKeyAndVisible()
 return true

In my Custom TabBarController:

import UIKit

class CustomTabBarController: UITabBarController 

 override func viewDidLoad() 
 super.viewDidLoad()
 setupCenterButton()
 

 func setupCenterButton() 
 let menuButton = UIButton(frame: CGRect(x: 0, y: 0, width: 64, height: 64))

 var menuButtonFrame = menuButton.frame
 menuButtonFrame.origin.y = view.bounds.height - menuButtonFrame.height - 48
 menuButtonFrame.origin.x = view.bounds.width/2 - menuButtonFrame.size.width/2
 menuButton.frame = menuButtonFrame
 menuButton.clipsToBounds = true
 menuButton.layer.cornerRadius = menuButtonFrame.height/2
 view.addSubview(menuButton)
 





extension UITabBar 

 open override func sizeThatFits(_ size: CGSize) -> CGSize 
 return CGSize(width: size.width, height: 64)
 

And my custom tab bar shape

import UIKit

class CustomizedTabBar: UITabBar {

private var shapeLayer: CALayer?

private func addShape() 
 let shapeLayer = CAShapeLayer()
 shapeLayer.path = createPath()

 if let oldShapeLayer = self.shapeLayer 
 self.layer.replaceSublayer(oldShapeLayer, with: shapeLayer)
 else 
 self.layer.insertSublayer(shapeLayer, at: 0)
 

 self.shapeLayer = shapeLayer


func createPath() -> CGPath 
 let path = UIBezierPath()

 path.move(to: CGPoint(x: 0, y: 0))
 //..path moving around..
 path.close()

 return path.cgPath


override func point(inside point: CGPoint, with event: UIEvent?) -> Bool 
 //..stuff


override func draw(_ rect: CGRect) 
 self.addShape()


func createBezierPath() -> UIBezierPath 

 //..creating a path

How do I get around this? With the current code setup my tabbar comes out like a normal tabbar...not my custom shape
see here

and I have tried to override my tab bar property in my UITabBarController to return an instance of my CustomizedBarBar class, with no luck. Any help would be much appreciated!

Please try and run this way, and let me know.

class MyTab: UITabBar 


class MyTabBarController: UITabBarController 
 override var tabBar: UITabBar 
 return MyTab()